I've actually run MD with OSArmor for over a year in the past. I've also run it with F-Secure for 6 months or so. Neither are really wrong. Like I said, I'm home sick and just picking people's brains. haha. Seems to be mostly a toss up, like you said I also mostly lean toward not paying for something if it's not doing anything for me. I would even give Bitdefender a swing (I'm sporting 32GB of memory), it's been a while, but that thing does not uninstall very cleanly and I don't know if I want to deal with that.